<?php //$Id: grouping_form.php,v 1.1.2.3 2008/12/29 21:32:36 skodak Exp $

require_once($CFG->dirroot.'/lib/formslib.php');

/// get url variables
class grouping_form extends moodleform {

	// Define the form
	function definition () {
		global $USER, $CFG, $COURSE;

		$mform =& $this->_form;

		$mform->addElement('text','name', get_string('groupingname', 'group'),'maxlength="254" size="50"');
		$mform->addRule('name', get_string('required'), 'required', null, 'server');
		$mform->setType('name', PARAM_MULTILANG);

		$mform->addElement('htmleditor', 'description', get_string('groupingdescription', 'group'), array('rows'=> '15', 'course' => $COURSE->id, 'cols'=>'45'));
		$mform->setType('description', PARAM_RAW);

		$mform->addElement('hidden','id');
		$mform->setType('id', PARAM_INT);

		$mform->addElement('hidden', 'courseid');
		$mform->setType('courseid', PARAM_INT);

		$this->add_action_buttons();
	}

	function validation($data, $files) {
		global $COURSE;

		$errors = parent::validation($data, $files);

		$textlib = textlib_get_instance();

		$name = trim(stripslashes($data['name']));
		if ($data['id'] and $grouping = get_record('groupings', 'id', $data['id'])) {
			if ($textlib->strtolower($grouping->name) != $textlib->strtolower($name)) {
				if (groups_get_grouping_by_name($COURSE->id,  $name)) {
					$errors['name'] = get_string('groupingnameexists', 'group', $name);
				}
			}

		} else if (groups_get_grouping_by_name($COURSE->id, $name)) {
			$errors['name'] = get_string('groupingnameexists', 'group', $name);
		}

		return $errors;
	}

}
?>
